# -*- coding: utf-8 -*-
import tkinter as tk
root = tk.Tk()
root.title("tk11.py")
root.geometry("200x200")
#####################################
def Greeting(event):
    print('Hello', en.get())

lb = tk.Label(root, text = '姓名:', font="標楷體")
en = tk.Entry(root, bg = 'lightgreen',\
     bd = 2, font = "標楷體", width = 50)
bt = tk.Button(root, text = 'Hello')
lb.pack()
en.pack()
en.bind('<Return>', Greeting)
bt.pack()
bt.bind('<1>', Greeting)
#####################################
root.mainloop()